page_tail.php

<!--JQuery-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>

<!-- Bootstrap -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

<!-- Datepicker && LESS-->
<script src="//cdnjs.cloudflare.com/ajax/libs/less.js/2.5.1/less.min.js"></script>
<script src="<?php echo base_url('assets/datepicker/js/bootstrap-datepicker.js') ?>"></script>

<!--LightSlider-->
<script src="<?php echo base_url('assets/lightslider/src/js/lightslider.js') ?>"></script>

<!--Google JSAPI-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>

<script type="text/javascript" src="<?php echo base_url('assets/js/custom.js') ?>"></script>

</body>
</html>